OGLATTR_LIGHT_SPOT_EXPONENT
| Data Type: | integer |
| Access: | read/write |
| Functions: | OGLGetCtrlAttribute OGLSetCtrlAttribute |
| Description: | Effective light intensity is attenuated by the cosine of the angle between the direction of the light and the direction from the light to the vertex being lighted, raised to the power of the spot exponent. Thus, higher spot exponents result in a more focused light source, regardless of the spot cutoff angle. The default value is 0 resulting in a uniform light distribution. Valid Range = 0 to OGL_MAX_LIGHT_SPOT_EXPONENT |
| LabWindows/CVI Compatibility: |
LabWindows/CVI 5.0 and later |